9812740 has 144 divisors (see below), whose sum is σ = 27578880. Its totient is φ = 2903040.

The previous prime is 9812731. The next prime is 9812741. The reversal of 9812740 is 472189.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (9812741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 316525 + ... + 316555.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

Almost surely, 2^9812740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9812740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13789440).

9812740 is an abundant number, since it is smaller than the sum of its proper divisors (17766140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9812740 is a wasteful number, since it uses less digits than its factorization.

9812740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 9812740 is about 3132.5293294716. The cubic root of 9812740 is about 214.0901882064.

It can be divided in two parts, 981 and 2740, that added together give a square (3721 = 61²).

The spelling of 9812740 in words is "nine million, eight hundred twelve thousand, seven hundred forty".